/*
 * Copyright (C) 2013 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.squareup.picasso3;

import android.support.annotation.NonNull;

public interface Callback {
  void onSuccess();

  void onError(@NonNull Throwable t);

  class EmptyCallback implements Callback {

    @Override public void onSuccess() {
    }

    @Override public void onError(@NonNull Throwable t) {
    }
  }
}
